Summer Heat

Some fruiting species and varieties are severely stressed when daytime temperatures consistently exceed 95 to 100 F.  One example is summer-bearing raspberries where the fruit ripening season corresponds closely with the onset of mid-summer heat.  Weak, sickly plants and misshapen and bleached fruit are the frequent result of this heat stress.  Honeycrisp apple is another example of a variety that is extremely cold hardy but not well adapted to the midsummer heat of the warmer regions of Utah.